feat: add opencode adapter (#16)

Author: KevinWu098

README.md

@@ -315,7 +315,7 @@ gtr.editor.default = cursor
 ### AI Tool Settings
 
 ```bash
-# Default AI tool: none (or aider, claude, codex, cursor, continue)
+# Default AI tool: none (or aider, claude, codex, cursor, continue, opencode)
 gtr.ai.default = none
 ```
 
@@ -328,6 +328,7 @@ gtr.ai.default = none
 |**[Codex CLI](https://github.com/openai/codex)**|`npm install -g @openai/codex`| OpenAI coding assistant |`git gtr config set gtr.ai.default codex`|
 |**[Cursor](https://cursor.com)**| Install from cursor.com | AI-powered editor with CLI agent |`git gtr config set gtr.ai.default cursor`|
 |**[Continue](https://continue.dev)**| See [docs](https://docs.continue.dev/cli/install)| Open-source coding agent |`git gtr config set gtr.ai.default continue`|
+|**[OpenCode](https://opencode.ai)**| Install from opencode.ai | AI coding assistant |`git gtr config set gtr.ai.default opencode`|
 
 **Examples:**
 

adapters/ai/opencode.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+# OpenCode adapter
+
+# Check if OpenCode is available
+ai_can_start(){
+command -v opencode >/dev/null 2>&1
+}
+
+# Start OpenCode in a directory
+# Usage: ai_start path [args...]
+ai_start(){
+local path="$1"
+shift
+
+if! ai_can_start;then
+ log_error "OpenCode not found. Install from https://opencode.ai"
+ log_info "Make sure the 'opencode' CLI is available in your PATH"
+return 1
+fi
+
+if [ !-d"$path" ];then
+ log_error "Directory not found: $path"
+return 1
+fi
+
+# Change to the directory and run opencode with any additional arguments
+ (cd "$path"&& opencode "$@")
+}
+

bin/gtr

@@ -944,7 +944,7 @@ load_ai_adapter(){
 
 if!command -v "$cmd_name">/dev/null 2>&1;then
  log_error "AI tool '$ai_tool' not found"
- log_info "Built-in adapters: aider, claude, codex, cursor, continue"
+ log_info "Built-in adapters: aider, claude, codex, cursor, continue, opencode"
  log_info "Or use any AI tool command available in your PATH (e.g., bunx, gpt)"
 exit 1
 fi
@@ -1098,7 +1098,7 @@ CONFIGURATION OPTIONS:
  atom, none
  gtr.ai.default Default AI tool
  Options: aider, claude, codex, cursor,
- continue, none
+ continue, opencode, none
  gtr.copy.include Files to copy (multi-valued)
  gtr.copy.exclude Files to exclude (multi-valued)
  gtr.copy.includeDirs Directories to copy (multi-valued)